CN104011372B - For the compression air starting system with liquid-detecting and the method thereof of explosive motor - Google Patents

For the compression air starting system with liquid-detecting and the method thereof of explosive motor Download PDF

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Publication number
CN104011372B
CN104011372B CN201280057607.2A CN201280057607A CN104011372B CN 104011372 B CN104011372 B CN 104011372B CN 201280057607 A CN201280057607 A CN 201280057607A CN 104011372 B CN104011372 B CN 104011372B
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valve
actuator
liquid
explosive motor
detecting system
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CN104011372A (en
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K·努尔马拉
J·威廉松
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Wartsila Finland Oy
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Wartsila Finland Oy
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N9/00Starting of engines by supplying auxiliary pressure fluid to their working chambers
    • F02N9/04Starting of engines by supplying auxiliary pressure fluid to their working chambers the pressure fluid being generated otherwise, e.g. by compressing air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/10Safety devices not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Present invention discusses the liquid detecting system for explosive motor of a kind of novelty, for operating the method for the liquid detecting system for explosive motor, and utilize liquid detecting system to the method for explosive motor of upgrading. The present invention specifically is applicable to the use of the large combustion engine that pressurized air starts. The liquid detecting system and method for the present invention utilizes described valve (7) by opening the trigger valve (7) of explosive motor simultaneously, thus, by rotating engine machine at a slow speed, liquid is removed to excretion pipeline (28) from cylinder (3) via eduction valve (24), at excretion pipeline, the existence of liquid is detected by detector of liquid (26).

Description

For the compression air starting system with liquid-detecting and the method thereof of explosive motor
Technical field
The present invention relates to the liquid detecting system for explosive motor, operate the method for the liquid detecting system for explosive motor, and utilize liquid detecting system to the method for explosive motor of upgrading.
Background technology
Explosive motor faces following so a kind of risk, when starting the engine, has liquid in one or more cylinders of engine. Liquid such as water may not only originate from the leakage of cylinder head gasket, it is also possible to originates from the leakage of exhaust valve seat or the settling chamber gasket leakage of gas engine. When leakage of oil, source may be leak diesel engine fuel injector or from the lubricating oil of injector cooling loop or piston cooling loop. When engine is rotated, such as starting object, due to the incompressibility of liquid, at compression stage, also it is exactly that the liquid existed in combustion chamber increases cylinder pressure in cylinder, and in the worst cases, liquid fills up the volume even exceeding piston combustion chamber when top dead center position, causes pressure stroke powerful in cylinder. Such pressure stroke makes all relevant cylinders and engine parts generation fault, similar such as cylinder head gasket, piston, piston ring, wrist pin, connecting rod, its bearing, and bent axle and its bearing and bearing support.
Therefore, it is an object of the present invention to provide so a kind of explosive motor, it has the device of motor fault preventing from causing by the liquid in cylinder.
Another object of the present invention is to provide a kind of like this explosive motor, it has the device that whether there is liquid in cylinder for detecting.
Further aim of the present invention is to utilize the device that whether there is liquid at least one cylinder for detecting to explosive motor of upgrading.
Further object of the present invention is to provide a kind of like this explosive motor, and it has reacts the device of (such as generating alarm) to there is liquid this kind of situation in cylinder.
Summary of the invention
Above-mentioned and other the object of the invention will be met by the liquid detecting system for explosive motor, described explosive motor is equipped with and utilizes pressurized air to start the trigger mechanism of this explosive motor, this trigger mechanism comprises compressed air source, main starting valve, for the multiple independent trigger valve at least partially in engine cylinder, for operating the actuator of described independent trigger valve, and positive timer, described in described engine cylinder is at least connected with described compressed air source via having supervisor road and the piping system of branch line by means of described main starting valve and described independent trigger valve at least partially, and described actuator is connected with described positive timer, described liquid detecting system has the device for affecting actuator, at least one eduction valve, drain the detector of liquid in pipeline and described excretion pipeline, the described device for affecting actuator is for opening described independent trigger valve simultaneously, at least one eduction valve described is arranged at least one at least one branch line and supervisor road, described excretion pipeline is connected at least one eduction valve described, for drawing described explosive motor at least partially described in liquid is from described engine cylinder.
Above-mentioned and other the object of the invention will be met by the method for operation for the liquid detecting system of explosive motor, described explosive motor is equipped with and utilizes pressurized air to start the trigger mechanism of this explosive motor, this trigger mechanism comprises: piping system, this piping system has supervisor road and branch line, described supervisor road is connected to compressed air source and main starting valve, and described supervisor road is connected to for the multiple independent trigger valve at least partially in engine cylinder by means of branch line; Actuator, this actuator is for operating described independent trigger valve; And positive timer, this positive timer is for opening and closing described independent trigger valve to rotate described engine by means of described actuation sequence, described liquid detecting system comprises: for walk around the device of described positive timer, at least one eduction valve, at least one drain pipeline, and at least one detector of liquid, described method comprises the following steps: walk around described positive timer to open described independent trigger valve simultaneously; Open from arriving at least one detector of liquid described and the fluid communication of excretion pipeline described in described engine cylinder at least partially via described independent trigger valve by means of at least one eduction valve described; And rotate at a slow speed described engine, with by liquid medium being discharged at least one excretion pipeline described through trigger valve at least partially from described engine cylinder.
Above-mentioned and other the object of the invention will by utilizing the upgrade method of explosive motor of liquid detecting system to be met, described explosive motor is equipped with and utilizes pressurized air to start the trigger mechanism of this explosive motor, this trigger mechanism comprises: piping system, this piping system has supervisor road and branch line, described supervisor road is connected to compressed air source and main starting valve, and described supervisor road is connected to for the multiple independent trigger valve at least partially in engine cylinder by means of branch line; Actuator, this actuator is for operating described independent trigger valve; And positive timer, this positive timer is for opening and closing described independent trigger valve to rotate described engine by means of described actuation sequence, and described method comprises the following steps: the device being provided for walking around described positive timer for described trigger mechanism; Described piping system provides at least one eduction valve; For at least one eduction valve described provides excretion pipeline; And be described excretion pipeline offer detector of liquid.
The present invention, when solving the above-mentioned problem, eliminates liquid and enters in one or more engine cylinder the motor fault risk caused.
Accompanying drawing explanation
Below, will in conjunction with respective drawings, to for explosive motor liquid detecting system, operate this for the method for liquid detecting system of explosive motor and utilize this liquid detecting system to set forth to the method for explosive motor of upgrading, wherein,
Fig. 1 schematically shows the trigger mechanism for explosive motor of the prior art,
The fluid present invention detection system that Fig. 2 schematically shows with existing trigger mechanism in Fig. 1 is arranged explicitly, and
Fig. 3 schematically shows existing fluid present invention detection system arranged explicitly for the trigger mechanism of explosive motor with another.
Embodiment
Fig. 1 schematically shows basic structure and the principle of work of prior art explosive motor trigger mechanism 1, and it has detail in such as WO2007003693A1, is hereby incorporated by.In order to starting large explosive motor, convention adopts pressurized air to carry out rotating engine machine. Compressed air source 2 can be such as compressed air network or compressor. Via the piping system comprising supervisor road 4 and branch line 4 ', through main starting valve 5 and flame arrester 6, pressurized air is imported into engine. Pressurized air is supplied to the cylinder 3 of explosive motor further by means of trigger valve 7, and a usual cylinder 3 configures a trigger valve 7. But, many trigger valve the same as the quantity of cylinder sometimes need not be set. Such as V-type engine, it is only necessary on a row engine, there is trigger valve. Trigger valve 7 is usually arranged to the cylinder head with explosive motor and is associated, and like this, the pressurized air for rotating engine machine can be imported into combustion chamber, and unrelated with the position of piston in cylinder 3. The operation of trigger valve 7 is controlled by positive timer 10, and this timing device sequence ground opens and closes compression work air from pipeline 13 via the connection of pipeline 12 to the actuator 8 of trigger valve 7, thus sequentially opens and closes trigger valve 7.
The main starting valve 5 of trigger mechanism 1 opens compressed air source 2 via supervisor road 4 and the connection between branch line 4 ' and trigger valve 7, and by so-called work air pneumatic control. Work air can derive from compressed air source 2 or derive from other any suitable sources via automatically controlled magnetic valve 9. When fluid communication when storing up device from pressurized air is opened by automatically controlled magnetic valve 9, the bar of compression work air impact main starting valve 5, and described bar is moved to such position, in this position, the fluid communication arriving trigger valve 7 through flame arrester 6, pipeline 4 and branch line 4 ' from compressed air source 2 is opened. Meanwhile, compression work air from air source 2 is directed to positive timer 10 along pipeline 13. Positive timer 10 is usually arranged to the camshaft with engine and is associated so that the operation of positive timer is synchronous with the work period of engine. Broadly, advantageously, positive timer 10 is mechanically combined with the rotating part of engine, thus so that can in time for each cylinder supplies pressurized air.
Work airline 12 leads from positive timer 10 actuator 8 of each trigger valve 7. Positive timer 10 runs, so that when the fluid communication of the actuator 8 from pipeline 13 to certain trigger valve 7 is opened, trigger valve 7 opened by actuator 8, thus pressurized air from air source 2 can enter engine cylinder 3. Opening of the trigger valve 7 of engine cylinder 3 is timing, so that cylinder is in its work period, and piston is just through its top dead center position, and therefore, pressurized air promotes piston downwards, and with suitable direction rotary crankshaft.
The work airline 13 that pressurized air from compressed air source 8 imports to positive timer 10 is equipped with inaccessible valve 11. The object of inaccessible valve 11 is, ensures that engine can not be started when such as engine turning device works. In other words, when turning device works, resist spring and valve rod is pushed to left side, thus close from compressed air source 2 to the fluid communication of positive timer 10.
Fig. 2 show and is arranged to and the liquid detecting system of the present invention being associated for the trigger mechanism of explosive motor existing in Fig. 1. Therefore, identical Reference numeral represents identical parts. Trigger mechanism shown in Fig. 1 and Fig. 2 is normally used for small engine, and at this, small engine is considered as with a flame arrester.
The liquid detecting system of the present invention comprises the valve group 20 being arranged between positive timer 10 and trigger valve 7, or in fact, comprises the valve group 20 between the actuator 8 being arranged in positive timer 10 and pipeline 12. By means of valve group 20, just likely walk around positive timer 10, also it is exactly compression work air is directly introduced via pipeline 22 and pipeline 12 from compressed air source 2 actuator 8 of trigger valve 7, thus opens trigger valve 7 and keep them to be simultaneously open. Pipeline 22 can be connected to any available compressed air source, such as the compressed air source that Reference numeral in Fig. 12 represents.
Liquid detecting system comprises eduction valve 24 further, and this eduction valve is disposed in pipeline 4, and pressurized air is directed to cylinder 3 via branch line 4 ' and trigger valve 7 from compressed air source by pipeline 4 usually. Excretion pipeline 28 is connected to eduction valve 24, to be discharged by the medium collected from cylinder 3. Excretion pipeline 28 is equipped with detector of liquid 26, and this detector of liquid is arranged to, if detecting that liquid just provides can listen an or visible alarm in media as well. Further selection is, such as, be arranged to by detector of liquid in engine daily record and take notes, and like this, afterwards, under the engine conditions damaged, if engine is started after alarm sends, just likely sees. Further select to be, detector of liquid is arranged to, if liquid being detected, sending signal just to engine automonitor, being used for stoping the starting of engine. If needed, detector of liquid 26 can also initiate or perform other tasks. Except the above-mentioned parts listed, the liquid detecting system of the present invention also needs the device for rotating engine machine. For rotating engine machine device (not shown) preferably, but not necessarily, be arranged to the flywheel with engine and be associated. Device can be such as can slowly the electronic or oil motor of rotating engine machine or rotating mechanism. In fact, swivel arrangement can corresponding to be usually used to start reduced size engine starting motor, but its task is, it may be preferred that very slowly rotating engine machine. Other swivel arrangements can also be applied simultaneously.
Being operated the liquid detecting system of the present invention before starting at engine, thus, main starting valve 5 stops pressurized air to enter pipeline 4. First, valve group 20 (such as, a series of pneumatic operation valve) is arranged to walk around positive timer 10, and allows pressurized air to enter the actuator 8 of all trigger valves 7 from pipeline 22, also it is exactly open from cylinder 3 via the connection of branch line 4 ' to pipeline 4. 2nd, eduction valve 24 is opened, to arrange from pipeline 4 to the connection of excretion pipeline 28. 3rd, engine slowly is rotated by swivel arrangement, and thus, any liquid or other liquid that are present in cylinder are pumped into pipeline 4 at least in part. Detector of liquid 26 detects rapidly in excretion pipeline 28 to there is liquid, and if programming by this way, Controlling System just can stop the rotation of engine immediately and give the alarm, subsequently, find out the reason that there is water or liquid in one or more cylinder, further, in the easiest situation, liquid or at least part of liquid are removed from a cylinder (or multiple). Another selection is, manual expel liquid. In any case, it is necessary to finding out the basic reason of leak of liquid, this needs to remove cylinder head usually. If leakage water problem, and leaking to become and continue for greatly or the long time, so perhaps part water enters crankcase via the gap between piston and cylinder sleeve, thus, water must and lubricating oil separation. Consequently, it is desirable to a lot of manual work, but by means of the present invention, leakage is timely detected and is possible to prevent bigger infringement.
Fig. 3 show the liquid detecting system that comprises the present invention another for the trigger mechanism of explosive motor.The existing apparatus that the principle of trigger mechanism is relevant to Fig. 1 is similar. Therefore, identical Reference numeral represents identical parts. But, in figure 3, show the trigger mechanism of bigger engine, thus, as compared to the trigger mechanism of Fig. 1 with Fig. 2, it can be seen that a difference, just in the upstream of trigger valve 7, in this case, in branch line 4 ', for each cylinder 3 configures independent flame arrester 6. Another difference is that pipeline 13 leads the position of positive timer 10. Now, pipeline 13 is only the extension of the pipeline 4 that pressurized air is directed to trigger valve 7 from main starting valve 5, and in fig. 1 and 2, it is the independent pipeline being provided with inaccessible valve. Certainly, the piping layout in Fig. 1 and Fig. 2 is also exactly the pipeline comprising inaccessible valve, it is also possible to be used in here.
Liquid detecting system in Fig. 3 is run in a similar manner as the liquid detecting system of the above-mentioned discussion of composition graphs 2 and is operated.
The actuator 8 of positive timer 10, valve group 20 and trigger valve 7 is discussed above with pneumatics. But, those parts can have some selections. Therefore, starting point is exactly such, owing to engine is by compressed air starting, so trigger valve 7 needs compressed air delivery to engine cylinder.
A selection can be: positive timer is electronic, and the actuator of trigger valve 7 is electronic, and namely valve 7 is magnetic valve. In this case, more easily for the device of the present invention provides power equipment, this power equipment is used for walking around positive timer, to open trigger valve to operate the liquid detecting system of the present invention simultaneously.
A selection can be: positive timer is electronic, and valve group is formed by a series of magnetic valve, these magnetic valves be used for by the pneumatically actuated device of trigger valve one by one (being also exactly sequentially) be connected to compressed air source, thus (atimedfashion) opens each valve in the way of simultaneously. When all valves of needs are simultaneously open (when implementing of the present invention, this is also need), it are easy to walk around positive timer, thus connect all magnetic valves, and thus all actuators are connected to compressed air source simultaneously.
Also, it is to be understood that, pneumatic positive timer 10 itself can be equipped with the device for being connected while opening from pilot piping 13 to all pilot piping 12. Therefore, the employing of this optional enforcement mode eliminates the needs to independent valve group 20.
Further, it is to be understood that a small group engine cylinder (row of V-type engine such as) can be equipped with their liquid-detecting. With in a similar manner, can being equipped with at least partially of engine cylinder 3 is arranged to the independent liquid-detecting (eduction valve 24, excretion pipeline 28 and detector of liquid 26) being such as associated with branch line 4 ', thus, it is possible to be easy to leak position, location. Therefore, before starting innovative approach, only need less measurement.
It it is only the exemplary illustrated with novelty and creative explosive motor liquid detecting system and liquid detecting system operation methods it is to be understood that above-mentioned. It is to be understood that when being only the enforcement mode discussed and when their intention of details without any limiting the invention to, explanation above only discusses the optimum enforcement mode of the present invention. Therefore, specification sheets above can not be understood as that and limit the present invention by any way, and the whole scope of the present invention only is required to limit by appended claims. From explanation above it can be appreciated that the independent feature of the present invention can use together with feature independent with other, it is combined in even if such a in specification sheets or accompanying drawing and does not specifically illustrate.

Claims (11)

1. the liquid detecting system for explosive motor, described explosive motor is equipped with and utilizes pressurized air to start the trigger mechanism of this explosive motor, this trigger mechanism comprises compressed air source (2), main starting valve (5), for the multiple independent trigger valve (7) at least partially in engine cylinder (3), for operating the actuator (8) of described independent trigger valve (7), and positive timer (10), described in described engine cylinder (3) is at least connected with described compressed air source (2) with the piping system of branch line (4 ') on supervisor road (4) via having with described independent trigger valve (7) by means of described main starting valve (5) at least partially, and described actuator (8) is connected with described positive timer (10), it is characterized in that, described liquid detecting system comprises the device for affecting actuator (8) (20), at least one eduction valve (24), drain the detector of liquid (26) in pipeline (28) and described excretion pipeline (28), the described device (20) for affecting actuator (8) is for opening described independent trigger valve (7) simultaneously, described at least one eduction valve (24) is arranged in the one at least one branch line (4 ') and supervisor road (4), described excretion pipeline (28) is connected to described at least one eduction valve (24), for liquid is drawn described explosive motor at least partially from described described engine cylinder (3).
2. liquid detecting system as claimed in claim 1, it is characterized in that, described positive timer (10) and described actuator (8) are pneumatic, and the described device for affecting actuator (8) is valve group (20), this valve group is used for opening and arrives being connected of described actuator (8) via pipeline (22) with the first pilot piping (12) from compressed air source.
3. liquid detecting system as claimed in claim 1, it is characterized in that, described positive timer (10) and described actuator (8) are pneumatic, and described positive timer (10) is equipped with the device for connecting while opening from the 2nd pilot piping (13) to all first pilot piping (12).
4. liquid detecting system as claimed in claim 1, it is characterized in that, described positive timer and described actuator are electronic, thus, the described device for affecting actuator is to bypass described positive timer to operate described actuator (8) to open the power equipment of described trigger valve (7) simultaneously.
5. liquid detecting system as claimed in claim 1, it is characterized in that, described positive timer is electronic, described actuator (8) is pneumatic, and the described device for affecting actuator (8) is magnetic valve group (20), this magnetic valve group is used for opening and arrives being connected of described actuator (8) via pipeline (22) with the first pilot piping (12) from compressed air source.
6. liquid detecting system according to any one of claim as previously, it is characterised in that, described liquid detecting system comprises the swivel arrangement for rotating engine machine at a slow speed.
7. liquid detecting system as claimed in claim 6, it is characterised in that, described swivel arrangement is electronic or the rotating mechanism of hydraulic pressure.
8. liquid detecting system as claimed in claim 1, it is characterised in that, described positive timer (10) is arranged to the rotating part with described explosive motor and is associated.
9. liquid detecting system as claimed in claim 8, it is characterised in that, described positive timer (10) is arranged to be associated with camshaft.
10. one kind operates the method for the liquid detecting system for explosive motor, described explosive motor is equipped with and utilizes pressurized air to start the trigger mechanism of this explosive motor, this trigger mechanism comprises: piping system, this piping system has supervisor road (4) and branch line (4 '), described supervisor road (4) is connected to compressed air source (2) and main starting valve (5), and described supervisor road is connected to for the multiple independent trigger valve (7) at least partially in engine cylinder (3) by means of branch line (4 '); Actuator (8), this actuator is for operating described independent trigger valve (7); And positive timer (10), this positive timer is for sequentially opening and closing described independent trigger valve (7) to rotate described explosive motor by means of described actuator (8), and described liquid detecting system comprises:
For walking around the device (20) of described positive timer,
At least one eduction valve (24),
At least one excretion pipeline (28), and
At least one detector of liquid (26),
Described method is characterised in that following step:
Walk around described positive timer (10) to open described independent trigger valve (7) simultaneously,
The described fluid communication arriving described at least one detector of liquid (26) and excretion pipeline (28) at least partially via described independent trigger valve (7) from described engine cylinder (3) is opened by means of described at least one eduction valve (24), and
Rotate at a slow speed described explosive motor, with by liquid medium being discharged at least one excretion pipeline (28) described through trigger valve (7) at least partially from described engine cylinder (3).
11. 1 kinds utilize liquid detecting system to the method for explosive motor of upgrading, described explosive motor is equipped with and utilizes pressurized air to start the trigger mechanism of this explosive motor, this trigger mechanism comprises: compressed air source (2), main starting valve (5), for the multiple independent trigger valve (7) at least partially in engine cylinder (3), for operating the actuator (8) of described independent trigger valve (7), and positive timer (10), described in described engine cylinder (3) is at least connected with described compressed air source (2) with the piping system of branch line (4 ') on supervisor road (4) via having with described independent trigger valve (7) by means of described main starting valve (5) at least partially, and described actuator (8) is connected with described positive timer (10),
Described method is characterised in that following step:
It is provided for for described trigger mechanism walking around described positive timer (10) and device (20) for affecting described actuator (8), the described described device (20) for affecting described actuator (8) is for opening described independent trigger valve (7) simultaneously
One at least one branch line (4 ') and supervisor road (4) arranges at least one eduction valve (24),
Pipeline (28) will be drained and it will be connected to described at least one eduction valve (24), for liquid is drawn described explosive motor at least partially from described described engine cylinder (3), and
Detector of liquid (26) is located in described excretion pipeline (28).
CN201280057607.2A 2011-11-23 2012-10-11 For the compression air starting system with liquid-detecting and the method thereof of explosive motor Active CN104011372B (en)

Applications Claiming Priority (3)

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FI20116171A FI123333B (en) 2011-11-23 2011-11-23 Liquid detection system for an internal combustion engine, method for operating the liquid detection system and method for improving an internal combustion engine
FI20116171 2011-11-23
PCT/FI2012/050976 WO2013076357A1 (en) 2011-11-23 2012-10-11 Compressed air starting system with a liquid detection device for an internal combustion engine, and methods thereof

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CN104011372B true CN104011372B (en) 2016-06-08

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EP2783100A1 (en) 2014-10-01
FI20116171A (en) 2013-02-28
CN104011372A (en) 2014-08-27
EP2783100B1 (en) 2021-05-26

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